EP1467103A3 - Explosion-proof device - Google Patents

Explosion-proof device Download PDF

Info

Publication number
EP1467103A3
EP1467103A3 EP04005678A EP04005678A EP1467103A3 EP 1467103 A3 EP1467103 A3 EP 1467103A3 EP 04005678 A EP04005678 A EP 04005678A EP 04005678 A EP04005678 A EP 04005678A EP 1467103 A3 EP1467103 A3 EP 1467103A3
Authority
EP
European Patent Office
Prior art keywords
rotor
explosion
areas
proof device
reduced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04005678A
Other languages
German (de)
French (fr)
Other versions
EP1467103B1 (en
EP1467103A2 (en
Inventor
Norbert Kastrup
Thomas Heng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB AG
Original Assignee
KSB AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Publication of EP1467103A2 publication Critical patent/EP1467103A2/en
Publication of EP1467103A3 publication Critical patent/EP1467103A3/en
Application granted granted Critical
Publication of EP1467103B1 publication Critical patent/EP1467103B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/506—Hardness

Abstract

The motor drive for a conveyor in an explosive atmosphere has a fixed housing (2) with a rotor (3) moving relative to it. There are areas of reduced spacing width (5-7) between the housing and rotor. During the movement of the movable rotor sparking is reduced, as the faces of the areas with reduced spacing are made of a material with a melting point below the ignition point of the explosive atmosphere.
EP04005678A 2003-04-04 2004-03-10 Explosion-proof device Expired - Lifetime EP1467103B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10315672 2003-04-04
DE10315672A DE10315672B4 (en) 2003-04-04 2003-04-04 Explosion-proof device in the form of a power and / or work machine

Publications (3)

Publication Number Publication Date
EP1467103A2 EP1467103A2 (en) 2004-10-13
EP1467103A3 true EP1467103A3 (en) 2006-05-03
EP1467103B1 EP1467103B1 (en) 2012-02-22

Family

ID=32864353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005678A Expired - Lifetime EP1467103B1 (en) 2003-04-04 2004-03-10 Explosion-proof device

Country Status (3)

Country Link
EP (1) EP1467103B1 (en)
AT (1) ATE546650T1 (en)
DE (1) DE10315672B4 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804602A1 (en) * 1988-02-13 1989-08-24 Klein Schanzlin & Becker Ag Explosionproof split-cage motor
US5311820A (en) * 1991-01-17 1994-05-17 Thiokol Corporation Method and apparatus for providing an insensitive munition
EP1180653A1 (en) * 1999-05-17 2002-02-20 Matsushita Refrigeration Company Refrigerator and defrosting heater
DE10116868A1 (en) * 2001-04-04 2002-10-17 Ksb Ag Magnetic drive pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233475C2 (en) * 1971-07-12 1983-10-20 Compagnia Italiana Tubi Metallici Flessibili S.p.A., 10156 Torino Delivery pump for a flammable liquid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804602A1 (en) * 1988-02-13 1989-08-24 Klein Schanzlin & Becker Ag Explosionproof split-cage motor
US5311820A (en) * 1991-01-17 1994-05-17 Thiokol Corporation Method and apparatus for providing an insensitive munition
EP1180653A1 (en) * 1999-05-17 2002-02-20 Matsushita Refrigeration Company Refrigerator and defrosting heater
DE10116868A1 (en) * 2001-04-04 2002-10-17 Ksb Ag Magnetic drive pump

Also Published As

Publication number Publication date
EP1467103B1 (en) 2012-02-22
DE10315672B4 (en) 2013-04-11
DE10315672A1 (en) 2004-10-14
ATE546650T1 (en) 2012-03-15
EP1467103A2 (en) 2004-10-13

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